whipple



(NoModeL V H.--J. P. WHIPPLE.

ATTAGHIyG KNOBS T0 SPINDLES. No. 321,928. Patented July 7, 1885;

UNITED STATES PATENT OFFICE.

HENRY J. P. WVHIPPLE, OF CLEVELAND, OHIO, ASSIGNOR TO VICTORIA C. VVHIPPLE, OF SAME PLACE.

ATTACHING KNOBS TO SPINDLES.

.QBECIFICATION forming part of Letters Patent No. 321,928, dated July 7, 1885.

Application filed November 24, 1884. (No model.)

To all whom it may concern:

Be it known that I, HENRY J. P. WHIPPLE, of Cleveland, in the county of Ouyahoga and State of-Ohio, have invented new Improvements in Attaching Knobs to Spindles; and I do hereby declare the following, when taken in connection with accompanying drawings, and the letters of reference marked thereon, to bea full, clear, and exact description of the same, and which said drawings constitute part of this specification, and represent, in

Figure 1, the knob as applied to the door, showing a longitudinal section to illustrate the attachment; Fig. 2, a side view of the spin- 1 dle, showing the bottom of the reces Fig. 3, a face view of the block corresponding to said recess; Fig. 4, a transverse section through the neck and spindle at the pin; Fig. 5, a section on line 00 0c of Fig. 1.

This invention relates to a device for attaching the adjustable knob of a knob-latch to its spindle, and so that the knob may be set at any desirable position on the spindle, in order to bring the two knobs in the proper 2 relation to their respective roses; and the invention consists in the usual angular spindle, having a longitudinal recess upon one side and at the end where the adjustable knob is to be applied, the bottom of the said recess serrated or grooved transversely, combined with a block set into said recesss, its surface adjacent to the bottom of the recess in the spindle correspondingly serrated, with a pin introduced through the neck of the knob and 3 5 between the said block and the bottom of the recess, whereby the spindle at that point is expanded so as to clamp upon the inside of the neck of the knob, as more fully hereinafter described. I

A represents the spindle, on one end of which is the usual fixed knob, B. O is the adjustable knob, applied to the other end of the spindle. The spindle is of the usual square or angular shape. Upon one side of the spin- 5 dle, at the end where the adjustable knob is to be applied, I make a recess, a, transversely across the spindle. The bottom of this recess a is transversely grooved or serrated, as seen in Fig. 2. Into this recess a block, b, is loosely Fig. 3. The block substantially fills the recess in the spindle, as seen in Fig. 1.

Diametrically through the neck D of the adj ustable knob O, I make a hole,which,when the knob is set upon the spindle, as seen in Fig. 1, will stand in the plane of the adjacent faces of the bottom of the recess and of the block b.

In applying the knob, the spindle is first introduced through the door. Then the block I) set into the recess in the spindle. Then over the spindle and block the knob G is placed, and set at the proper position with relation to its rose. Then through the hole in the neck of the knob a wedge-like pin, (1, is introduced, which enters corresponding grooves in the bottom of the recess and of the block B, and acts as a wedge between the two to force them asunder against the respective sides of the opening in the neck of the knob, as seen in Figs. 1 and 4:. The serrations are small in extent, so that the adjustment may be made very close, and when once made and properly setthe pin d may be riveted upon its two ends so as to prevent any possible accidental removal of the pin, and thereby the knob is securely held; but suchriveting of the pin is not necessary, as, if driven into a firm bearing, there is little liability of its being accidentally removed, much less liability than attends the use of the common knob-screw. The block I) being set in the recess in the spindle, can have no longitudinal movement independent of the spindle, but becomes when in the knob substantially a part of it. The serrations on the one part may be omitted, those on the other part being sufficient to lock the pin.

The cost of manufacture is little if anymore than that of the common knob-screw attachment; but the attachment is closer than can well be made in the use of the knobscrew,as in the more general application of door-knobs to their spindles.

To secure the fixed knob B, instead of introducing a rivet through its neck and spindle, as in the usual construct-ion, I make a removable device, whereby after the knob C has been secured the knob 13 may be readily removed from its spindle should it be necessary to remove the spindle from the knob. This fastening device consists of a spring-clamp, e,whieh may be cut from sheet metal, and so as to more than half surround the neck of the knob, as seen in Fig. 5. Connected to this spring is a pin, f, and diametrically through the neck and spindle a hole is made to receive the pin, and so that the pin inserted will couple the knob with the spindle. The spring clasps around the neck of the knob to such. an extent as to preventthe accidental removal of the pin, it being understood that thepin is made fast to the spring. It is introduced to the hole in the neck of the knob and pressed downward, the ends of the spring bent to pass over the full diameter of neck and then close below, as seen in Fig. I prefer to make the spring to embrace both sides of the neck; buttheone sidemaybeomitted. The single leg 01' the spring grasping upon one side of the knob will be suliicient to hold the pin in place. Thus applied the pin is not liable to work, as in the ease of aknobscrew.

I am aware that knob-spindles have been split and held in the kn ob by a wedge driven through the split of the spindle to expand it so as to take a bearing within the knob; butsuch eonstruetion I do not claim, the essential feature of this part of my invention being not a split spindle, but making the spindle in two separate detached parts, and so that the two may be spread to force them, respectively, against opposite sides 01' the spindle, the advantage of which over a split spindle will be apparent when it is considered that the wedge driven between the split spindle throws the two ends into an inclined position with relation to the neck of the knob, and while the split end of the spindle may take a bearing in the knob, that bearing is gradually diminished toward the outer end of the neck of the knob, so that there can be but a short portion of the bearing which has any degree of strength or force upon the neck, whereas by constructing the spindle in two parts, the one part set into a recess in the other, the opening of the two parts is equal from end to end, and consequently an equal bearing is produced throughout the entire length of the second part.

I claim- 1. The herein-described improvement in attaehing knobs to spindles, consisting in the spindle A, constructed with a transverse recess near one end, combined with ablock, I), in said recess, the bottom of the recess and face of the block, one or both, transversely grooved, combined with a knob having a hole diametrically through its neck inaplane between the bottom of the recess and the said block 7), with a pin, 11, through said hole in the neck of the knob, and between said block and spindle, substantially as described, and whereby the spindle is wedged inthe neck of the knob.

2. The neck of the knob and spindle c011- structed with a hole diamctri call y through them, combined with a pin,f, and spring (2, attached to said pin, substantially as and for the purpose described.

Jon): E. EARLIG, Jos. O. EARLE. 

